2022

Bootstrapped Masked Autoencoders for Vision BERT Pretraining

Dong, Xiaoyi, Bao, Jianmin, Zhang, Ting et al.

Understand

We propose bootstrapped masked autoencoders (BootMAE), a new approach for vision BERT pretraining.

  • BootMAE improves the original masked autoencoders (MAE) with two core designs: 1) momentum encoder that provides online feature as extra BERT prediction targets; 2) target-aware decoder that tries to reduce the pressure on the encoder to memorize target-specific information in BERT pretraining.
  • The first design is motivated by the observation that using a pretrained MAE to extract the features as the BERT prediction target for masked tokens can achieve better pretraining performance.
  • Therefore, we add a momentum encoder in parallel with the original MAE encoder, which bootstraps the pretraining performance by using its own representation as the BERT prediction target.

Reading the bibliography…